Welcme to Haina Solar's comprehensive selection of professional-grade solar fasteners and essential photovoltaic (PV) mounting hardware. As a leading solar fastener manufacturer and supplier, we understand that the long-term integrity of any solar project—from residential rooftops to utility-scale solar farms—depends entirely on the strength and durability of its smallest components.
Our robust range of PV mounting hardware is engineered to meet rigorous international standards, ensuring your solar panels remain securely fixed for decades, regardless of extreme weather conditions like high winds, heavy snow loads, or intense thermal cycling.
We specialize in supplying corrosion-resistant materials, primarily Stainless Steel 304 (SS304) and Stainless Steel 316 (SS316), which are crucial for coastal and high-humidity installations. Our product lineup includes a full spectrum of components, such as solar hanger bolts for tile and metal roofs, specialized bi-metal self-drilling screws, various DIN standard screws and nuts, and aluminum T-slot track bolts for rail systems.
Every component is designed for fast, secure installation and superior load-bearing capacity. When you choose Haina Solar, you are investing in a secure, certified connection that reduces installation time and minimizes long-term maintenance costs. Secure your system with the best corrosion-resistant solar hardware on the market.
Material Excellence: Primarily manufactured using high-grade A2/70 (SS304) and A4/80 (SS316) stainless steel for maximum durability and corrosion resistance.
Compliance: All major fasteners conform to international standards, including DIN 933, DIN 571, and ISO standards, ensuring global compatibility and quality assurance.
Specialized Components: Extensive inventory of specialized fasteners, including Stainless Steel Hex Flange Head Self Drilling Screws, M8 and M10 Solar T-slot Bolts, and Nylon Lock Nuts (DIN 985).
Application-Specific Design: Fasteners specifically designed for solar roof mounting systems (tile, metal, flat roof) and solar ground mounting systems (pile-driven and concrete foundations).
Finishing Options: Available finishes include hot-dip galvanizing (HDG) for carbon steel items and specialized coatings for bi-metal screws to prevent galvanic corrosion.
We stock a wide variety of solar-specific hardware to complete any PV installation:
Solar Hanger Bolts: Ideal for connecting mounting rails directly to wooden roof rafters, available with EPDM washers and aluminum flanges for waterproof seals. (Internal Link to Hanger Bolt product page)
Structural & Lag Screws: Heavy-duty DIN 571 wood lag screws used for securing primary structural components in rooftop and wood-framed installations.
Hex Bolts & Nuts: High-strength DIN 933 and DIN 934 hex head bolts and locknuts used for joining rail sections and connecting major support structures.
T-Slot & Track Bolts: Essential M8 and M10 T-bolts that slide into aluminum solar rails, used for securing solar panel clamps (mid-clamps and end-clamps).
Channel Nuts & Washers: Precision-fit channel nuts (with and without spring) for C-channel and U-channel mounting systems, paired with DIN 125 flat washers and DIN 127 spring lock washers to ensure vibration resistance.
Don't compromise the structural integrity of your solar investment with standard hardware. Partner with Haina Solar for certified, high-performance solar mounting hardware designed to last the life of your panels.
Whether you need a container load of SS304 PV screws or specialized solar T-bolts, our global supply chain guarantees prompt delivery and competitive wholesale pricing.
Click below to get a customized quote for your next project!
